If your husband has not been tested he needs to see a neuromuscular neurologist. He needs to have an emg/nerve conduction test along with biopsy for small fiber neuropathy. It’s hard to get treatment without the right diagnosis. Mine started in 1999 and the neurologist finally tested me in 2002 after my bacterial spinal meningitis. Mine is autoimmune and test positive for all forms. Severe axonal sensorimotor peripheral polyneuropathy, small fiber neuropathy, cardiac autonomic neuropathy it affects your heart rate and blood pressure, dysautonomia. The motor neuropathy causes tremors and I can’t hold a glass or eat I drop the fork. I do not feel from my feet to my knees and my elbows to my hands totally numb. I now drag my feet and legs.